Indirect-illuminating lamp.



H. S. OONANT.

INDIRECT ILLUMINATING LAMP.

APPLICATION FILED JAN. 7. 1914.

Patented Jan. 5, 19115.

I'VITNESSES: LVVENTOR.

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Specification of Letters Patent.

Patented Jan. 5., 1%15.

Application filed January 7, 1914. Serial No. 810,703.

To all whom it may concern Be it known that I, HAROLD S. CoNAN'r, a citizen of the United States, residing at Baltimore city, State of Maryland, have invented certain new and useful Improvements in Indirect-Illuminating Lamps, of which the following is a specification.

This invention relates to illuminating for artificial light and has special reference to means of improved character for producing a diffused indirect light.

Heretofore illumination of this character has been accomplished by means of an arrangement of translucent reflectors which reflected only a portion of the light, the rest being diffused through the reflectors. This, while producing a diffused effect still caused a bright-central spot to appear in the reflector with-the result that the diffusion was imperfect.

In the present instance the light is so arranged that all direct rays are cut off from the lower part of the roomwherein the light is placed so that only reflected rays are used for the illumination of the lower part of the room, this being found to give a highly superior result.

The object of the present invention is to provide means for producing the result above referred to in a superior and effective manner.

The invention, one embodiment of which is illustrated in the accompanying drawing and specifically described, consists in the combination of elements hereinafter specifically claimed. 1

In the accompanying drawing the view shows a vertical section taken diametrically through a reflector constructed in accordance with this invention, means for suspending the reflector and the light being also shown.

In the embodiment of the invention herein shown there is provided the usual ceiling rosette 10 which has formed thereon a series of hooks 11 to engage the end links of a series of chains 12 which have their lower ends connected to a suspending ring 13. This ring 13 is provided with depending cars 14 to which are connected chains 15 which are in turn connected to ears 16 formed on an opaque bowl 17 provided "with a suitable reflecting surface, the bowl being frequently of opaque glass or the like. Resting on the ring 13 is the edge of a concave reflector 18 the arrangement being such that the edge of the two reflectors are spaced as can clearly be seen by reference to the figure This reflector 18 maybe opaque in those instances wherein it is desired that only the lower part of the room be illuminated or it may be translucent if it is desired to partly illuminate the ceiling of the room.

Secured within the bowl 1'? is a socket 19 for the reception of the lamp 20 to which current is supplied by means of the usual conductors 21. This bowl 17 is preferably semispherical and is of such depth that the lamp 20 lies wholly within the bowl 18. It is found that by this arrangement the much better deflection of the light is obtained and that there are no brilliant spots'in connection with the illumination of'a room wherein these devices are used.

There has thus been provided a simple and efficient device of the class described and of the character specified.

Having thus described the invention, what is claimed as new, is

1. In a device of the character'described, a reflector bowl opening upward, means for suspending said bowl from the ceiling, said means being provided with a reflector supporting means of greater diameter than said bowl, and a reflector opening downward supported on said reflector supporting means.

2. The combination with a ceiling rosette; of a series of chains depending from said rosette, a reflector suspension ring carried by the lower ends of said chains, a concave reflector suspended on said ring with the concave side downward, a series of suspending chains depending from the ring, a re- .flector bowl secured to the lower ends of the last mentioned chains with the mouth of the bowl upward, said bowl being of less diameter than the first reflector, and a lamp held wholly within the bowl and beneath the upper edge thereof.

In testimon whereof I affix my signature in presence of two witnesses.

HAROLD S. CUNAN T. Witnesses:-

E. INAr/ror: BunwINo'roN, I-Iowano D. Anans. 

